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Great changes ______________________________ in our hometown in the past 20 years.

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He looks sleepy. He must ________________________________ last night,writing the essay.

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Don¡¯t sit there ______________________. Come and help me with the table.

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I¡¯ll come tomorrow, _______________________________ .

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It¡¯s a small informal party among our old classmates--- you ___________________________.

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¡¾ÌâÄ¿¡¿ Running is a great way to get in shape and just about everyone can do it. Given that it's so easy to take up the sport, a lot of beginners jump right into running without actually knowing what it takes to establish a healthy routine.

¡¾1¡¿. If you are just starting out, avoid the following things to help you increase your chances of running success.

Doing too much too soon

One of the biggest mistakes beginners make is doing too much too soon. Picking up a new hobby like running is no doubt exciting. Runners need to ease into the sport before increasing the distance.¡¾2¡¿.

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Beginners might think they need to run nearly every day to meet their fitness or weight-loss goals, but this couldn't be further from the truth.¡¾4¡¿£¬ especially for beginners whose muscles and bones haven't yet been conditioned for such intense (¾çÁÒµÄ) exercise. So it's important to give your body ample rest between workouts. Follow a training plan that includes rest days.

Comparing yourself to others

¡¾5¡¿, You're excited about running, so you are probably reading running blogs, magazines and message boards where you might start to feel inadequate about your own running pace. Instead of getting down on yourself£¬ remember that every runner was once a beginner and use their success as motivation!

A. Not running every day

B. Not taking rest days

C. Running is a demanding activity which can be really hard on your body

D. As mentioned, a healthy routine is what they attach importance to

E. When starting out with running, it's tough not to compare yourself to others

F. Many make a number of common mistakes, which can interfere (¸ÉÈÅ) with training or lead to injury

G. It will help reduce the risk of injury, so you can continue with your new running routine

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¡¾1¡¿When does the conversation probably take place?

A. In the morningB. At noonC. In the evening

¡¾2¡¿Where is the cat food?

A. In the basementB. In the cupboardC. In the fridge

¡¾3¡¿Why did the man have to lock everything?

A. The dogs steal their foodB. The kids are not well behaved.C. The cat opens all the doors

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¡¾1¡¿At first kites were not used as a way to ________ on a windy day. £¨ÍæµÄ¿ªÐÄ£©

¡¾2¡¿I remember the whole thing clearly, ________ it happened yesterday.£¨ºÃÏñ£©

¡¾3¡¿They ________ and went to the dancing hall together.£¨´©ÉÏÊ¢×°£©

¡¾4¡¿She is ________ hearing from her boyfriend in Australia.£¨ÆÚ´ý£©

¡¾5¡¿I still remembered that our monitor successfully ________ all of us on April Fools¡¯ Day.£¨×½Åª£©

¡¾6¡¿On the Dragon Boat Festival people usually eat zongzi ________ Qu Yuan, a great poet.£¨¼ÍÄ

¡¾7¡¿The noise is horrible ¡ª you can hear the traffic ________.£¨ÈÕÒ¹£©

¡¾8¡¿You have reason to ________ your achievement.£¨Îª¡­¡­ ½¾°Á£©

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It¡¯s amazing that Chinese police are using facial-recognition tech to catch criminals. Police in Beijing are reportedly testing out new smart glasses with facial-recognition technology. The smart tech, which ¡¾1¡¿ (use) in many checkpoints to find suspects presently.

Some people will certainly be worried about the possibility of police using facial-recognition tech to flag individuals, ¡¾2¡¿ the chief executive thinks that there is no reason ¡¾3¡¿ the concern, because he trusts the government. ¡¾4¡¿ (Interesting), this is not the first time that facial recognition has been used to stop wrongdoers in Beijing. In 2017, we reported on how visitors were having their faces scanned automatically in a certain restroom in ¡¾5¡¿ capita] city to prevent locals from ¡¾6¡¿ (steal) the paper for use at home.

Authorities in Shenzhen, China, have also set up artificial intelligence-powered CCTV cameras to scan the faces of those ¡¾7¡¿ cross the streets unlawfully and display their ¡¾8¡¿ (identity) on large LED screens for all people to see.

If that isn¡¯t punishment enough, plans are now in place ¡¾9¡¿ (link) the current system with cellular technology, so offenders will also be sent a text message with a fine as soon as they are caught ¡¾10¡¿ (cross) the road against traffic lights.

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¡¾ÌâÄ¿¡¿Hamburgers, French fries£¬potato chips, popcorn, and pizza. There is no denying (·ñÈÏ) that these foods are tasty. But often, it¡¯s the added salt that makes you desire them. Thus, US kids are eating too much salty food.

Table salt is about 40% sodium(ÄÆ). Our bodies need some sodium to work properly. But too much of it is not healthy. The salt bottle is to blame for just 11% of the sodium kids consume. The rest has been added to food before it even reaches the table. The following shows how much sodium is packed into a typical turkey-and-cheese sandwich.

A turkey sandwich can pack a big sodium punch. Add a teaspoon of mustard (½æÄ©) and the total rises to 1,522 milligrams (mg). Kids aged 9 to 13 should get no more than 2,200 mg each day. This can raise blood pressure, which in turn can lead to heart problems. Today, 1 in 9 children has raised blood pressure. There¡¯s good news though. Consuming less salt can lower blood pressure.

That, of course, is easier said than done. The more you eat salty foods, the more you develop a taste for them. The key to changing your diet is to start small. Small changes in sodium in foods are not usually noticed. Eventually, the effort will reset a kid¡¯s taste buds (ζÀÙ).

Bridget Murphy is a dietitian. She says kids can try adding spices to their food instead of salt. Eating fruits and vegetables and cutting back on packaged foods will also help.

Need a little inspiration? Murphy offers this tip: Focus on the immediate effects of a diet that is high in sodium. High blood pressure can make it difficult to be active. ¡° Do you want to think clearly and perform well in school?¡± she asks. ¡°Do you want to run faster?¡±

Zerleen Quader, of the CDC, suggests reading nutrition labels. ¡°It¡¯s surprising how much the sodium content for the same food can vary by brand,¡± she says.

¡¾1¡¿Why do kids tend to eat too much salt?

A. Salt contains much sodium. B. The salt bottles are too big.

C. Salt makes foods delicious. D. Salt is necessary for their bodies.

¡¾2¡¿Where does most of the salt kids eat probably come from?

A. Family-cooked foods. B. Fruits and vegetables.

C. Bottles in the kitchen. D. Store-bought foods.

¡¾3¡¿How does added salt do harm to one¡¯s health?

A. It makes one too active. B. It raises blood pressure.

C. It changes sodium in salt. D. It makes gaining weight easy.

¡¾4¡¿Which is a suggested way to reduce the intake of salt?

A. Replacing salt with spices. B. Eating without selection.

C. Eating less home-made food. D. Taking much exercise every day.

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There are many persons who help me a lot, among whom are my English teacher, Miss Liu. I still remember being asked in his class, but I fail to answer the question. I was so embarrassed that I burst into tear. She didn¡¯t blame for me. Instead, she encouraged me with a smile, saying best way to face failure was to keep try and that no success could be achieved without failure. That she said struck me deep at that time, which made me study much harder than before. Now, as a senior three student, I make it my motto: Never give up, or you¡¯ll succeed in time.

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¡¾ÌâÄ¿¡¿ September 8, 2017, was an exciting date for Katey Walter Anthony. On this cool, windless evening she first visited Alaska¡¯s Lake Esieh. Few people visit this remote area of wilderness, covered by frozen ground with spruce trees. Thousands of lakes dot the region. But Walter Anthony quickly realized that this lake was strange. As her boat moved across it, she came to a place where the water seemed to be boiling.

The water wasn¡¯t warm. Bubbles of all sizes streamed up, popping at the surface. One bubble, as large as a softball, gave off a loud sound as it burst. The bubbles, which rose with such force that they slowly pushed her boat to the side, covered a part of the lake larger than a football field.

Walter Anthony leaned over the edge of the boat and collected some bubbles in a bottle. Then she struck a match and opened the bottle to release the gas she had just collected. The gas caught fire!

The fire dancing over the bottle confirmed her belief. It showed that the lake was flowing out a gas called methane. Each molecule(CH4) contains one atom of carbon bonded to four atoms of hydrogen. As a strong greenhouse gas, it can absorb radiation from the sun, warming the atmosphere. Methane, along with carbon dioxide, is a major source of global warming.

Scientists believe that the Arctic could release large amounts of methane over the next 100 years. Some of them worry that this methane will cause the world to warm more quickly than they had predicted.

Walter Anthony has spent nearly 20 years trying to understand this threat. She is trying to measure how much methane is coming out of warming Arctic lakes. And to her, Lake Esieh could be a warning. If other lakes respond the same way, the Arctic could be poised to flow out far more methane than anyone had expected. ¡°We don¡¯t even know how much gas is down there,¡± she says. ¡°It¡¯s a wild card.¡±

¡¾1¡¿Why is Lake Esieh considered strange?

A. The water there is boiling.

B. It is located in a remote area.

C. Bubbles there give off a loud sound.

D. It is flowing out a gas that can catch fire.

¡¾2¡¿What effect does the gas from the lake have on the environment?

A. It warms the water of the Arctic lakes.

B. It pollutes the fresh air in the Arctic.

C. It takes in the sunlight and holds the Arctic ice.

D. It absorbs carbon dioxide and gives off oxygen.

¡¾3¡¿How does Walter Anthony feel about the gas methane?

A. It is amusing.B. It is beneficial.C. It is a blessing.D. It is a threat.

¡¾4¡¿Where might this text come from?

A. A science fiction.B. A tourist brochure.

C. A science report.D. A geography textbook.

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